1J79 Permalloy Sheet Plate Ni79Mo4 Soft Magnetic Nickel Iron Alloy Plate High Permeability Precision Alloy Sheet for Magnetic Shielding & Transformer Core
1J79 Permalloy Sheet/Plate is a high-performance soft magnetic nickel-iron alloy containing approximately 79% nickel, offering excellent magnetic permeability, low coercive force, and low core loss. It is widely used in applications requiring superior magnetic shielding and high magnetic sensitivity. After proper heat treatment, 1J79 exhibits outstanding magnetic properties, making it an ideal material for precision electronic components and electromagnetic devices.
Our 1J79 alloy sheets are manufactured with strict quality control to ensure uniform composition, stable mechanical properties, and excellent processing performance. They are available in a wide range of thicknesses, widths, and customized dimensions to meet different industrial requirements. Surface finishes include cold rolled, hot rolled, bright, polished, and pickled.
1. Chemical Composition:
|
Ni |
78.5-80.0 |
|
Mo |
3.8-4.1 |
|
Fe |
Bal |
|
Mn |
≤0.5 |
|
Si |
≤0.3 |
|
C |
≤0.03 |
2. Technical Specifications:
|
Parameter |
Specification |
|
Max continuous Operating Temperature(℃) |
≤450 |
|
Resisivity(μΩ/cmf,20℃) |
60 |
|
Density(g/m³) |
8.6-8.7 |
|
Thermal Conductivity(W/m·K, 20°C) |
13.4 |
|
Tensile strength(N/m㎡) |
520-690mpa |
|
Melting point(℃) |
1400-1435℃ |
|
Hardness(Hv) |
150-220Hv |
|
Elongation(%) |
≥30% |
3. Production Attributes
|
Product Form |
1J79 Plate |
|
Diameter |
customization |
|
Surface Finish |
Bright, Polished |
|
Packaging Type |
Coil, Bundle, Straight Rods |
|
Certification |
ISO9001, SGS, and so on |
|
Application Environment |
Chemical, Industrial,Home |
4.Application
- Magnetic shielding enclosures and shields
- Transformer cores and current transformer (CT) cores
- Precision instrument components
- Electronic relays and electromagnetic switches
- Inductors, chokes, and magnetic amplifiers
- Magnetic sensors and Hall sensor components
- Pulse transformers and communication equipment
- Aerospace and defense electronic systems
- Medical equipment and diagnostic instruments
- Precision measuring instruments
- Audio equipment and electromagnetic devices
- Scientific research and laboratory instruments
5.Key feature
- High initial and maximum magnetic permeability
- Low coercive force for excellent soft magnetic performance
- Low core loss and low hysteresis loss
- Excellent magnetic shielding capability
- High magnetic sensitivity and stable magnetic properties
- Good mechanical strength and ductility
- Excellent cold forming, stamping, and machining performance
- Suitable for vacuum annealing to achieve optimum magnetic properties
- Available in hot rolled, cold rolled, and precision-rolled conditions
- Custom thicknesses, widths, lengths, and surface finishes available
- Consistent chemical composition and reliable quality
- Manufactured according to GB, ASTM, JIS, DIN, or customer specifications
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.